Tony Dungy worked on a variety of projects during his entertainment career. In 1977, he signed with the Pittsburgh Steelers as a free agent. In 1979, he began playing for the San Francisco 49ers. In 2002, he was hired as head coach of the Indianapolis Colts. Dungy worked on a variety of projects during his early entertainment career, including "The Late Show With David Letterman" (CBS, 1993-2015). Dungy also appeared in "NFL Head Coach: The Man Behind the Men" (TNT, 1996-97). More recently, Dungy appeared on "NFL Characters Unite" (USA, 2011-12).